Improvement in artificial marble



ATENT OFFICE;

AGAPIT BRAULT, OF MONTREAL, QUEBEC, ASSIGNOR TO GIDEON BOURDEAU,

OF LAIRAINE, CANADA.

IMPROVEMENT IN ARTlFlCiAL MAPiB L.

Specificationiforniing part of Letters Patent No. 205,346, dated June25, 1878; application filed March 2, 1878.

T d! whom it may concern:

Be it .known that I, AGAPIT BRAULT, of .theieity and district ofMontreal, Province of Quebeo Dominion of Canada, here, invented a newand useful compound called Artificial Marbleflwhieh compound is fullydescribed in the following specification.

' This invention relates to that class of com pounds used for'ornamontal purposes, buildrugs, and other structures; and it consistsin i a composition for artificial stone. as will he hereinafter morefully set t'orth and pointed out in the claim.

To prepare this composition, take ten ounces of sulphur, seven and ahalfounces of marblednst, two ounces and one-fourth of an ounce ofivoryblaelc in powder, and one-sixth of an ounce of American Vermilionin powder. First dissolve the sulphur in a vessel at a temperature of226; give the same temperature to'the marble-dust before mixing it tothe sulphur, the two being mixed; tukoofi' fine ounce and a half of sameand place it in "another vessel; then add to this last the one sixthfill-9111100 of Vermilion, so as to form the yellow veins; then add theivoryhlaek to the'sulphur and marhledust contained in the first vessel,when the whole is dissolved at a temperature of 226 thiow in it theportion contained in the small vesselythen mold it. To acquire thepolish; it is necessary thatthe composition should be molded in polishedmolds, to which the above-named temperature should be given.

The composition will notdeeompos'e by age,

